They call me I do not answer the number why bother if you do not answer it

Eh im sick of this crap keeps calling me.

Keeps calling. When I answer they just hang up.

Had a couple of missed calls from this number, rings once or twice and leaves no msg.

One missed call. No message left. Thank you all for posting your messages.

Called and when I asked who u after he hung up .....silly

These people keep calling me, in spite I told them STOP CALLING ME. It' some IMS - something about Marketing Insurance, located in India, they said. It some sort of life insurance they trying to sell, of course, with a strong Indian accent. STOP HARRASING ME, and where did they get a mobile phone number, when is set as a silent and private, and I am paying some extra bucks for it.
Is there Anybody please, to make this people stop calling me??? Thank you!

Every day same number but I never answer this has been going on for months but u still don't answer u would think they would get the message by now

As all the other comments say its a telemarketer outsourced to india. They are selling insurance and have very annoying poor english men on the other end.
I think the reason it only takes a few rings before hangup is because they dial numerous numbers at once to save on ringing time. When someone answers they hang up on the rest and speak to the one who answers. When I got called I answered pretty quickly and heard static at first as their internet connected via the Sydney number to my number. So I reckon these idiots are sitting in a room with a headset on and a monitor in front of them. When a call connects they get connected and our details appear on their screen.

These morons ring you and hang up so that you waste your own money ringing them to have insurance marketing rammed down your throat. The best option is to inform them that if they continue to harass you, you will report them to the Telecommunications Industry Ombuds.

2 missed calls from this number yesterday; no message left.

They ring once and hung up, at least daily, what is their point if i cant even answer

Very rude - hung up as soon as I answered.

Many calls from this number & line drops out before I can answer. Called them back , reply is always " Optimum Transnational, all our operators are busy call us back later". I am on do not call register but it does not stop this mob.

It's a group called Optimal Transnational.
"Digital Marketing Outsourcing solutions provider in multiple web-based and mobile services"
Called me from both numbers multiple times also but they never ring for long.

Keep getting calls from this number and (02) 9188 3644